using System.Linq;
using NUnit.Framework;
using UnityEngine;
using UnityEngine.Graphing;
using UnityEngine.MaterialGraph;

namespace UnityEditor.MaterialGraph.UnitTests
{
    [TestFixture]
    public class PropertyGeneratorTests
    {
        [TestFixtureSetUp]
        public void RunBeforeAnyTests()
        {
            Debug.unityLogger.logHandler = new ConsoleLogHandler();
        }

        private const string kPropertyName = "ThePropertyName";
        private const string kPropertyDescription = "ThePropertyDescription";

        [Test]
        public void TestCanAddPropertyChunkToPropertyGenerator()
        {
            var chunk = new FloatPropertyChunk(kPropertyName, kPropertyDescription, 0.5f, PropertyChunk.HideState.Visible);
            var generator = new PropertyGenerator();
            generator.AddShaderProperty(chunk);

            Assert.AreNotEqual(string.Empty, generator.GetShaderString(0));
        }

        [Test]
        public void TestCanGetShaderStringWithIndentWorks()
        {
            var chunk = new FloatPropertyChunk(kPropertyName, kPropertyDescription, 0.5f, PropertyChunk.HideState.Visible);
            var generator = new PropertyGenerator();
            generator.AddShaderProperty(chunk);

            Assert.AreEqual(0, generator.GetShaderString(0).Count(x => x == '\t'));
            Assert.AreEqual(1, generator.GetShaderString(1).Count(x => x == '\t'));
            Assert.AreEqual(2, generator.GetShaderString(2).Count(x => x == '\t'));
        }

        [Test]
        public void TestCanGetConfiguredTextureInfos()
        {
            var chunk = new TexturePropertyChunk(kPropertyName, kPropertyDescription, null, TextureType.Bump, PropertyChunk.HideState.Visible, TexturePropertyChunk.ModifiableState.Modifiable);
            var generator = new PropertyGenerator();
            generator.AddShaderProperty(chunk);

            var infos = generator.GetConfiguredTexutres();
            Assert.AreEqual(1, infos.Count);
            Assert.AreEqual(kPropertyName, infos[0].name);
            Assert.AreEqual(0, infos[0].textureId);
            Assert.AreEqual(TexturePropertyChunk.ModifiableState.Modifiable, infos[0].modifiable);
        }
    }
}